(1) Definition of gas detector industry
Gas detector is an instrumentation tool for gas leakage concentration detection,gas detectorThe instrument converts the physical or chemical non-electrical signals collected by the gas sensor into electrical signals, and then processes the above electrical signals through external circuits, such as rectification and filtering, and controls the corresponding modules through these processed signals to realize the specific functions of gas detection. The Gas Detector detects a wide range of gases such as hydrogen sulfide, carbon monoxide, oxygen, sulfur dioxide, phosphine, ammonia, nitrogen dioxide, hydrogen cyanide, chlorine, chlorine dioxide, ozone, and flammable gas.
Gas detector categories are classified according to the detection object, including flammable gas (including methane) detectors, Toxic gas detectors,oxygen detector。 According to the detection principle, flammable gas detection includes catalytic combustion type, semiconductor type, thermal conductivity type and infrared absorption type. toxic gas detection includes electrochemical type, semiconductor type, etc.; Oxygen detection includes electrochemical type, etc. According to the mode of use, there are portable and fixed. According to the place of use, there are conventional and explosion-proof types.
(2) The role of gas detector
According to the differences in the use of gas detectors, gas detectors are mainly divided into two series: industrial gas detectors and civil gas detectors. Industrial gas detectors are further divided into three categories: portable, fixed, and systematic. Industrial gas detector instrument products are mainly used in petroleum, chemical, metallurgy, coal mine, liquefied gas and other enterprises; Civil gas detector instruments are mainly used for gas detection and alarm in public places and households.
(3) Overview of the main market of the gas detector industry in the industrial field
1. Gas
With the rapid progress of the domestic "West-to-East Gas Transmission" project, the development and utilization of Bohai oil and gas fields, the East China Sea oil and gas field and the South China Sea oil and gas field, and the signing of the Sino-Russian $25 billion energy loan agreement, the clean energy industry represented by natural gas has risen rapidly. In the first half of 2012, the total length of China's oil and gas pipelines reached 93,000 kilometers. In the future, with the introduction of a large number of foreign resources, the increase of domestic oil and gas fields, and the vigorous development of natural gas markets in various regions, China's pipeline construction will surely develop further. It is expected that by 2015, the length of the national long-distance natural gas pipeline will be close to 100,000 kilometers. A large number of natural gas field development and pipeline construction will greatly increase the demand for natural gas detection equipment. According to the survey, an average of 10,000 points in second-tier cities need to install Flammable gas detectors, and an average of 4,000 points in third-tier cities need to install Flammable gas detectors, so it is calculated that major cities in China need to install Flammable gas detectors 813,000 gas instruments, Flammable gas detectors are calculated according to the average life of 3 years, and major cities need 270,700 Flammable gas detectors (sets) every year. Based on an average of 2,000 yuan per unit (set), the market size of gas flammable gas testing is 541.4 million yuan. The ratio of the number of Toxic gas detectors installed to Flammable gas detectors in the gas industry is 1:4 The demand for Toxic gas detectors is 67,700 units (sets), and the average price of Toxic gas detectors isFlammable gas detectorsTwice the average price, 4,000 yuan/unit (set), the market size of Toxic gas detectors in the gas industry is about 271 million yuan.
2. Oil
The main elements that make up crude oil are carbon, hydrogen, sulfur, nitrogen and oxygen, and compounds containing sulfur, oxygen and nitrogen are harmful to petroleum products and need to be removed as much as possible in oil processing. This causes a large amount of toxic gases such as carbon monoxide, sulfur dioxide, hydrogen sulfide and organic vapors such as benzene, aldehyde and ketones to be produced during the production and processing process, posing a threat to production safety and environmental protection. At present, the method of gas detection and analysis is generally used to control, and it is correct in oil productionflammable gasLeak detection and monitoring of ambient gases such as hydrogen and oxygen also require the use of gas detector meters. In the oil industry, 2,000 probes are required for every 10 million tons of refining, and no less than 1,000 Flammable gas detectors are installed for every 1 million tons of ethylene produced. By the end of 2012, China's total refining capacity will reach 578 million tons, with a demand of 115,600 Flammable gas detectors (sets), and 14.868 million tons of ethylene production in 2012, requiring 15,000 Flammable gas detectors (sets). The market size is 261.2 million yuan based on an average of 2,000 yuan per unit (set).
In all kinds of oil and gas stations, there is also a large demand for gas detectors for the detection of toxic gases such as flammable gas, carbon monoxide, sulfur dioxide, hydrogen sulfide, and organic vapors such as benzene, aldehydes, and ketones, which are mainly used for safety protection and prevention of poisoning and explosion accidents. In 2012, the total number of domestic oil and gas stations has exceeded 100,000, and the annual demand for Flammable gas detectors is about 167,000 units (sets) according to the instrument life of 3 years. The average market size is 334 million yuan based on an average of 2,000 yuan per unit (set).
Flammable gas detectorsThe ratio with Toxic gas detectors is 65%:35% in the entire oil industry. The demand for Toxic gas detectors is 160,250 sets, the average price of Toxic gas detectors is twice the average price of Flammable gas detectors, which is 4,000 yuan/unit (set), and the market size of Toxic gas detectors is 641 million yuan.
3. Chemical industry
Whether it is the coking industry, coal gasification-synthetic ammonia, coal-based methanol, coal-to-synthetic oil, coal chemical co-production, there is a wide demand for gas alarm products, especially for sulfur dioxide, hydrogen sulfide, carbon monoxide, chlorine, ammonia and other gas sensors are very large, preliminary calculations, the average per 10,000 tons of coke production needs to be flammable 100 sets (sets) of gas; Based on the annual output of 440 million tons of coke in 2012, it is neededFlammable gas detectors440,000 units (sets). The market size is 880 million yuan based on an average of 2,000 yuan per unit (set).
The chemical production field covers basic chemical raw materials and synthetic materials, chemical raw materials and chemical product manufacturing, pesticides, special chemicals and rubber products, etc., and the demand for gas detection products is all-round, covering almost all gas types, including organic steam,flammable gas, sulfur and nitrogen toxic gas detection products are the most. With the continuous strictness of the State Administration of Safety Supervision on the safety requirements of chemical and hazardous chemical processing, the use of gas detectors and instruments in the field of chemical and hazardous chemical processing has also increased year by year, and the annual market capacity is about 400,000 units (sets) of flammable gas, and the market size is 800 million yuan based on an average of 2,000 yuan per unit (set).
According to the Flammable gas detectors in the industry withToxic gas detectorsThe ratio of 3:1, the number of Toxic gas detectors launched is 280,000 units (sets), and the average price of Toxic gas detectors is twice the average price of Flammable gas detectors, which is 4,000 yuan/unit (set).Toxic gas detectorsThe market size is 1.12 billion yuan.
4. Metallurgical industry
The metallurgical industry uses the most and most widely used gas detection, mainly in steel and aluminum production. China is the world's largest steel producer. In the steel and aluminum industries, gas sensors such as carbon monoxide, sulfur dioxide, hydrogen sulfide, and nitrogen oxides are widely used, mainly to monitor fuel combustion, improve fuel utilization, save energy and reduce consumption. monitoring exhaust gas conditions to reduce pollution; At the same time, it also detects gas leakage in industrial places to ensure production safety and prevent occupational diseases.
Enterprises with a capacity of one million tons need to use it on average every yeargas detectorThere are about 300 sets of instruments and meters, and the annual demand of 10 million tons of iron and steel enterprises is about 500 units. If we calculate 93 steel enterprises with a scale of 1 million tons and 17 steel enterprises with an output of 10 million tons, a total of 36,400 units (sets) are required. Coupled with the metallurgical industry such as aluminum smelting, the annual demand is even greater. Based on an average of 2,000 yuan per unit (set), the market size of flammable gas in the steel industry is 72.8 million yuan.
The steel industry only uses toxic gas for coking plants, but the demand is large, and the steel industry is in high demandToxic gas detectorsThe ratio with Flammable gas detectors is 9:1, the number of Toxic gas detectors is 327,600 units (sets), and the market size is 1,310.4 million yuan based on an average of 4,000 yuan per unit (set).